The new antiskid design and sturdy industrial grade hardwaremakes the exercise safer. Fun, safe, durable, open-hand design. Muscles tendons lay ergonomically & train efficiently. Excellent to add into your workout routine. Spherical shape increases forearm and grip strength, boosting endurance. A must have for rock climbers, extreme sports Ninja Warrior or SASUKE players. An excellent addition to your workout routine. Switch between pull-ups and chin-ups without ever letting go. Easy to setup and use, and it's insanely fun to be on.